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Demonstration of subgigahertz channel demultiplexing based on optical heterodyne detection using a single axial mode from a passively modelocked semiconductor laser local oscillator
Subgigahertz channel demultiplexing by optical heterodyne detection based on injection locking is reported. The single channel filtered from two amplitude modulated signals detuned by 200 MHz exhibits a signal-to-noise ratio of over 65 dB/Hz.